The block chain system including a block chain structure for data self-sovereign identity

摘要

A blockchain system including a blockchain structure for data self-sovereignty is provided. The block chain system including a block chain structure for data self-sovereignty is a block chain system including a first user node and a second user node, and the first to nth blocks are connected in a block chain structure, One user node connects only the blocks including the transaction details in which the first user node participated among the first to nth blocks in a first block chain structure and stores them in the first user node, and the second user node stores the blocks including the transaction details in which the first user node participated. Among the first to nth blocks, only blocks including the transaction details in which the second user node participated are connected in a second block chain structure and stored in the second user node, and the first block chain structure is stored in the first user node A block chain structure is formed with hash value information between blocks including the transaction details in which the user node participated, and the second block chain structure is a block with hash value information between blocks including the transaction details in which the second user node participated. form a chain structure.